To find the best summary of the First Amendment, we can analyze its content. The First Amendment to the United States Constitution guarantees five fundamental freedoms: freedom of religion, freedom of speech, freedom of the press, freedom to peacefully assemble, and freedom to petition the government for a redress of grievances. The most concise summary of the First Amendment would be: "The First Amendment protects citizens' rights to freely express themselves, practice any religion, publish information, gather peacefully, and voice concerns to the government."